Environmental Science 12th Edition by William Cunningham,Mary Ann Cunningham

Exercise 24

Look at the animated map of volcanoes in the animated National Atlas at nationalatlas.gov \dynamic.html. (You will need Shockwave to display this movie; you can download Shockwave at the link on this page.) Where are most of the volcanoes in the lower 48 states Roll over the red dots to see photos and elevations of the volcanoes. As you move down the chain of mountains from north to south, is there a trend in elevations Look at the Alaska map. How are the volcanoes arranged here Based on your readings in this chapter, can you explain the pattern
Where Are Recent Earthquakes
You can find out about recent earthquakes, where they were, and how big they were, by looking at the USGS earthquake information page, earthquake.usgs.gov \. Click on the map to investigate recent events.
Alaska is often a hot spot of earthquake activity. Find the Alaska map (you may have to back up a page or two), and zoom in on a concentration of earthquakes. How many earthquakes are off shore How many are on shore